Finding the Fourth Proportional to 2,715.47, 4,071.71 and 1,253.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,715.47 : 4,071.71 = 1,253.32 : x
2. Step 2: Convert to fraction form
   2,715.47/4,071.71 = 1,253.32/x
3. Step 3: Cross multiply
   2,715.47x = 4,071.71 × 1,253.32
4. Step 4: Simplify right side
   2,715.47x = 5,103,148.53
5. Step 5: Solve for x
   x = 5,103,148.53/2,715.47
6. Step 6: Final answer
   x = 1,879.29